as3 can't get main.swf stage.StageWidth from external swf ! u ve faced this !? Plea

1

  1. A main stage called main.swf with a link

  2. When clicked it loads (addchild) an external swf

** In this external swf i need to know the the size of the main (stage.stageWidth) but it keeps giving me the width of the loaded swf not the main
**

Please do you know how to work around this ?